The invention provides a spiral vibration cake unloading filter press by pulling filter plates twice. An oil cylinder body is set to be lengthened, that is, the multiple filter plates can be pulled for the first time to reach the spacing of cake unloading, spacing chains are arranged among the filer plates, an oil cylinder bracket is installed at the lower end of the oil cylinder body, an active chain wheel is installed on a pull plate gear motor, a passive chain wheel is installed on an active shaft, driving chain wheels are installed at the two ends of the active shaft and are connected withpassive chains, driven chain wheels are installed at the two ends of a passive shaft, a middle clapboard is installed at the front end of a filter plate pulled for the second time, spiral vibration cake unloading devices comprise vibration gear motors and couplers, bearing bases are arranged at the two ends of each vibration shaft, one end of each vibration shaft is connected with the corresponding coupler through the bearing bases, spirally arranged vibration blocks are arranged above the vibration shaft, each vibration block corresponds to a handle of one filter plate, and the spiral vibration cake unloading devices are installed at the tail end of a main beam at the left side and the head end of a main beam at the right side respectively. The filter plate spiral vibration cake unloading filter press by pulling twice is simple in structure, free of fault rate, low in cost and high in efficiency, reaches the filter cake total recycling rate and increases economic benefit.